Appendix A: System calculations
EST3X Technical Reference Manual 249
Table 79: Maximum allowable length at 25 VRMS, 0.5 dB loss
Circuit load requirement
15 W 20 W 30 W 40 W 95 W 120 W
ft m ft m ft m ft m ft m ft m
190 58 142 43 95 29 71 22 Over max
current limit
Over max
current limit
309 94 231 70 154 47 116 35 48.7 15 39 12
475 145 356 109 237 72 178 54 75 23 59 18
772 235 579 176 386 118 289 88 121.8 37 96 29
Table 80: Maximum allowable length at 70 VRMS, 0.5 dB loss
Circuit load requirement
15 W 20 W 30 W 40 W 95 W 120 W
ft m ft m ft m ft m ft m ft m
1489 454 1117 340 744 227 558 170 235 72 186 57
2420 738 1815 553 1210 369 907 276 382 116 302 92
3722 1134 2792 851 1861 567 1396 426 588.7 180 465 142
6049 1844 4537 1383 3024 922 2268 691 955 291 756 230